Voice technology glossary
Key concepts for choosing and implementing voice services.
SIP
A protocol for establishing and controlling communication sessions.
PBX / IP-АТС
A business phone system with extensions and routing.
STT → LLM → TTS
Speech recognition → language model → speech synthesis. All three need local deployment for fully local AI processing.
WebRTC
Real-time browser and application communication; production services may need media and TURN servers.
TCO
Total cost of ownership: deployment, operation, changes and exit over an agreed period.
CPaaS
Communications Platform as a Service: provider capabilities integrated through APIs.